add with_kind to claims (#263)

Author: timu-jesse-ezell

livekit-api/livekit/api/access_token.py

@@ -80,6 +80,7 @@ class Claims:
     attributes: dict[str, str] = dataclasses.field(default_factory=dict)
     metadata: str = ""
     sha256: str = ""
+    kind: str = ""
 
 
 class AccessToken:
@@ -117,6 +118,10 @@ def with_sip_grants(self, grants: SIPGrants) -> "AccessToken":
     def with_identity(self, identity: str) -> "AccessToken":
         self.identity = identity
         return self
+    
+    def with_kind(self, kind: str) -> "AccessToken":
+        self.claims.kind = kind
+        return self
 
     def with_name(self, name: str) -> "AccessToken":
         self.claims.name = name